#include <stdio.h>
int main()
{
	float a,b;
	a=12;
	b=5;
	printf("%.1f+%.1f=%f\n",a,b,a+b);
	printf("%.1f-%.1f=%f\n",a,b,a-b);
	printf("%.1f*%.1f=%f\n",a,b,a*b);
	printf("%.1f/%.1f=%f\n",a,b,a/b);
	return 0;
 } 
